Murder Construct is an American extreme metal band from Los Angeles, California, United States. The band members are Travis Ryan (Cattle Decapitation), Leon del Muerte (Nausea LA, ex-Exhumed, ex-D.I.S
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8742cc48c246fe57dbf2b11a61f590db6fb32074aba9a50134c426c84470faa3. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a785914-ba3b-4f2f-bfbb-ac0ce49a2975.json and https://artists.proofprofile.net/proofs/artist/9a785914-ba3b-4f2f-bfbb-ac0ce49a2975.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).